revset: move subscript relation functions to its own dict
This will help adding more relation functions in extensions.
We skip short names (that consist of one letter) while raising
UnknownIdentifier because such names cannot be suggested anyway: the similarity
cutoff in dispatch._getsimilar() is currently 0.6.
# See http://EditorConfig.org for the specification
root = true
[*.py]
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indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true
[*.t]
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trim_trailing_whitespace = false